PYSEC-2026-3052
See a problem?- Import Source
- https://github.com/pypa/advisory-database/blob/main/vulns/richie/PYSEC-2026-3052.yaml
- JSON Data
- https://api.osv.dev/v1/vulns/PYSEC-2026-3052
- Aliases
- Published
- 2026-07-13T14:36:38.520323Z
- Modified
- 2026-07-13T16:32:44.015583598Z
- Severity
-
- 4.8 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N CVSS Calculator
- Summary
- OpenFUN Richie Observable Timing Discrepancy in its sync_course_run_from_request function
- Details
-
An issue in OpenFUN Richie (LMS) in src/richie/apps/courses/api.py. The application used the non-constant time == operator for HMAC signature verification in the synccourserunfromrequest function. This allows remote attackers to forge valid signatures and bypass authentication by measuring response time discrepancies.
- References
-
- https://nvd.nist.gov/vuln/detail/CVE-2026-26717
- https://github.com/openfun/richie/commit/a1b5bbda3403d7debb466c303a32852925fcba5f
- https://github.com/Rickidevs/CVE-2026-26717
- https://github.com/openfun/richie
- https://medium.com/@ordogh/cve-2026-26717-hmac-timing-attack-in-openfun-richie-lms-f04377efe83d?postPublishedType=repub
- https://pypi.org/project/richie
- https://github.com/advisories/GHSA-xjhr-fm27-4hmx
Affected packages
PyPI / richie
Package
- Name
- richie
- View open source insights on deps.dev
- Purl
- pkg:pypi/richie
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0Unknown introduced version / All previous versions are affectedFixed3.3.0
Affected versions
0.*
0.1.0
1.*
1.0.0b0
1.0.0b1
1.0.0b2
1.0.0b3
1.0.0b4
1.0.0b5
1.0.0b6
1.0.0b7
1.0.0b8
1.0.0b9
1.0.0
1.0.1
1.1.0
1.2.0
1.3.0
1.4.0
1.4.1
1.5.0
1.5.1
1.5.2
1.6.0
1.6.1
1.7.0
1.7.1
1.7.2
1.7.3
1.8.0
1.8.1
1.8.2
1.8.3
1.9.0
1.9.1
1.9.2
1.10.0
1.11.0
1.12.0
1.12.1
1.13.0
1.14.0
1.14.1
1.15.0
1.16.0
1.16.1
1.16.2
1.17.0
2.*
2.0.0b0
2.0.0b1
2.0.0b2
2.0.0b3
2.0.0b4
2.0.0b5
2.0.0b6
2.0.0b7
2.0.0b8
2.0.0b9
2.0.0b11
2.0.0b12
2.0.0b13
2.0.0b14
2.0.0b15
2.0.0b16
2.0.0b17
2.0.0b18
2.0.0b19
2.0.0b20
2.0.0b21
2.0.0b22
2.0.0
2.0.1
2.1.0
2.2.0
2.3.0
2.3.1
2.3.2
2.3.3
2.4.0
2.5.0
2.6.0
2.7.0
2.7.1
2.8.0
2.8.1
2.8.2
2.9.0
2.9.1
2.10.0
2.11.0
2.12.0
2.13.0
2.14.0
2.14.1
2.15.0
2.15.1
2.16.0
2.17.0
2.18.0
2.19.0
2.20.0
2.20.1
2.21.0
2.21.1
2.22.0
2.23.0
2.24.0
2.24.1
2.25.0
2.25.1
2.26.0
2.27.0
2.28.0
2.28.1
2.29.0
2.29.1
2.29.2
2.30.0
2.31.0
2.32.0
2.33.0
2.34.0
3.*
3.0.0b0
3.0.0
3.1.0
3.1.1
3.1.2
3.2.0
3.2.1